Fluid-motor.



A. KELswo. ,FLUID MOTOR. APPLICATION FILED 00T. 14, 1909 Patented July 5, 1910.

WIT/VESSEL? g @msn A. KELSG.. FLUID MOTOR. APPLIUATION FILED 001214, 19o?.

#Patented July 5, 1910.

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WIN/8858 A. KELSO. FLUID MOTOR.

APPLICATION FILED ooT.14, 1909.

963,581. Patented July 5,190.

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ARCHIBALD KELSO, OF PITTSBURG, PENNSYLVANIA.

FLUID-MOTOR.

reciprocatory rotary type, to be operated by` any suitable' fluid, such as Water under a head.

An object of this invention is to provide a device Which will be simple in construction, strong, durable, and positive and eiiu cient in its operation.

A .further object of this invention is to provide a device having a rotary element, With means for automatically reversingthe rrotation of said element.

A still further object of this invention is to provide a device With a reciprocatory rotary element, with means for supplying an operating fluid to either side of said element, and Igiieaiis for sharply reversing the flow of said uid.

These andV further objects, together With the construction and combination of parts, Will be more fully described hereinafter and particularly set forth in the claims.

Reference is to be had to the accompanying drawings forming a part of this specitication, in which similar characters of reference indicate corresponding parts in all the views, and in Which v Figure 1 is a top plan View of my device; liig. 2 is a vertical section through the center of the same; Fig. 21 is a detail view in elevation, of a portion of the pistn and the shaft to Which it is connected; Fig. 3 is a horizontal section, showing the movable parts in one position; Fig. 4 is a view simi- 'lar to Fig. 3, showing the movable parts in their opposite position; Fig. 5 is an enlarged sectional detail View of the valve casing, on the line 5-5 of Fig. 4; Fig. 6, is a bottom plan View of the valve-operating parts, corresponding to the position of the piston indicated in Fig. 3; Fig. 7 isa bottom plan view similar to Fig. G, corres onding to the position of the parts just be 'ore they reach the position indicated in Fig. 4; F ig. 8 `is a ,vertical section showing in enlarged detail the valve-throwing mechanism; F ig. 9 is a plan View, showing in enlarged. detail a portion of the valvethrowing mechanism;

Specification of Letters Patent.

Application filed October 14, 1909.

rammed July 5, 1910. Serial N o. 522,523.

and Fig. 10 is a detail view of the valveoperat-ing lever.

Referring more particularly to the separate parts of the device, 1 indicates a supporting frame, which may be of any suitable form and material, and on which is supported a` motor casing 2. yThe motor casing 2 comprises .a cylindrical body portion 3 and a pair of heads Il and 5 having cylindrical iianges overlying the body portion 3 and being tied'together by suitable bolts 8 extending through perforations in the outstanding flanges of the heads. The head 5 has a plurality of outstandinglugs 6, provided with perforations through which extend tie-bolts 7,v whereby the device is secured to any suitable support, such as a bracket on' a Washing machine. The head 5 is also provided with a central aperture through which extends a shaft- 9, Which is also journaled in a bearing formed in the opposite head by insetting the head at 10. A suitable stuffing box 11 is provided Where the shaft 9 passes through the head 5, to

.prevent the outflowing of the operating fluid Within the casing 2. The shaft 9 is I provided with a vane 12, which is preferably formed integral therewith, and is of suoli a size as to almost contact with the inner sure face of the cylindrical body portion 3. In order to make the contact perfect and pre'.- vent any possible leakage of the operating Huid by the vane 12, this vane is flanked on either side with flexible packing strips 13 and 14, which are .secured to the vane 12 by means of plates 15 and l16, which are tied to the vane 12 by bolts 17 that pass through ali-ned openings. The packing strips 13 and 14 are of slightly greater size than the plates 15 and 16, and the vane 12, so that they form overlapping flanges on all sides, to Wipe against the surfaces ofthe heads 4t and 5 and the body portion 3', forining a perfectly fluid-tight lioint. These parts taken together are adapted to form a piston, which rotates with the shaft 9. Y

Extending frbm the'inner surface of the casing 8 to the outer surface of the shaft 9, there is provided a partition' 18, which has "a packing member 19 engaging the outer surface of the' shaft 9, so that a perfect fluid-tight joint is formed betweenthe'casing 3 and the shaft 9. Forming a part of this wall or partition 18, there is provided Va valve. casing 20, which has an outlet 21 to an exhaust pipe 22, anda similar inlet 23' ico to va supply pipe 24. This valve casing is also provided with a pair of openings land 26 communicating with the interior of passages and 31, which may be ofy any orm suitable to connect either the passages 23 and 26 and the passages 21 and 25, or the passages'Zl and 26 and the passages 23 VWandv 25. 'By this meansftheiuid entering through the supplypipe 24 can be deflected to either side of the partition 18, thereby causin the piston to rotate away from this side o the partition 13. In the meantime the opposite side of the partition 18 is open to the exhaust pipe 22, permitting the fluid back of the piston to pass out therethrough. The different positions 'of the valve to connect the different passages are illustrated clearly in Figs. 3 and 4, the passage of the uid in each case being illustrated by ,the arrows. The side of the valve 27 which coperates With the inlet opening 23 is broad, so as to lessen `the amount of fluid whichflows through, while the sidewhich4 A the valve is operated by the Apiston shaft, 40

tlius saving the piston from striking at either end of its stroke. lThe valve spindle 2.8 is angular at 32, so as to form ajconi venient locking surface, which is engaged by alever 33. vThis lever 33 is ofvpeculia'r shape and form, and is'provided preferably with cam surfaces, as at 34 and .35, and

is also provided on the side facing the head f5' with a pair of cam lugs 36 and 37.

Secured to the shaft 9 by any suitablemeans, such as a dowel-pin 38, there is' provided a concentric rin 39, which supports a shifter 40. 4The shi er 40 is provided at' the ends thereof with cam lugs 41 and 42,

which are adapted to come'in enga ement respectively with the cam lugs 36 an 37 on the lever 33, at alternate rotary. reciprocations of the shaft 9 and the piston thereon,- and are for the, purpose of holding thelever against, movement until the piston has `reached thel end of its rotation.

In order to throw the lever 33 after the sup orted` on 'the shifter 40 by means of a gui e groove 44 thereon engaging'with'a flange at the, same time 45 on the Shifter 40. lThe member43 has downwardly-extending anges 46 at eachy end, which are adapte o pass through slots 47 on the`shifter40, and engage a spring 48 retained in a receptacle 49 in the'shifter 40,

and adapted to alternately abut against the. .heads o i said receptacle. Extending u Wardly from the opposite/surface of t e' member 43, there are' provided at the ends thereof outstanding camA lugs 50 'and 51,'

which are adapted to engage respectively the cam surfaces 34 and 35 on the lever 33. The

member 43 is heldin position onthe shifter 40 by means of a plate 52, which 1s secured" in any well known manner on the shifter 40, as by means of a 'set screw 53.V

The shaft 9 has secured thereto an extension shaft 54, by means of which the power isvtransmitted from the motor to any suitable source, such as a washing machine.

The operation of the device will be readily understood from the above description.

Starting with the parts in the position indicated in Fig. 3, the operating fluid, such as Water under a head, will be supplied through the pipe 24, the opening 23, the passage 31 and the opening 26, into the'motor casing on the under side of the partition 18, as indicated by the arrow. The operating lluid will force the piston away from the partition 18, so as to rotate with the shaft 9. Thp position of the valve 27 will also permit the fluid on the opppsite side of the piston to pass out through the'opening 25, tlie` valve passage 30, and the opening 21,5into' the 4exhaust pipe 22. Vhen the piston approaches the end of its stroke, as indicated in Fig. 4, the lug 41 on the shifter 40 will have come in contact with the lug 36 on the lever 33. `At the same time, thetlug 50 on the member 43 will lhave come in contact with the cam surface 34 on the lever 33. The continued motion of the piston will gradually pass the lu holding the member 1,43 stationary against the tension 0f the spring 48. 1 When the lug 41, which engages the lug 36 and prevents the lever 33 from rotating, slips by th'e lug 36, then the member 43w1ll be shifted rapidly by the spring 48,

which is nowunder, a high tens1on,`in such, almanner as to shift thelever 33' into the position indicated in Fi 6. By this means, the valve 27 will be shifted from the osit-ion indicated in Fig. 3 to the position indicated in Fig. 4, connecting the opposite sideof the partition 18 with supply 41 by the lug 36,y

pipe 24, and permitting the side which was previously'thepowei` side to communicate rwith the exhaust pi e`22. When this occurs, the operating uid will pass from the pipe `24through the opening 23, the. passa eway 30, and the opening 25to the back si e 'of the piston, creating a .motive pulsebetween the vupper si e of thefpartij Aiso tion 18 and the piston. This will cause the piston to rotate in the opposite direction. Wlien the piston approaches the end of its stroke, the 'lug 42 on the shifter 40, will come in contact with the lug 37 on the lever 33, preventing the level from rotating until the lug 42 completely passes the lug 37. In the meantime, however, the lug 51 on the member 43 will have engaged the cam surface 35 on the lever 33, thereby holding the member 43 stationary against the tension of Vthe spring 48. When the shifter 40 has rovcated a suiiicient distance .to causethe lug vices, such as Washing machines.

Having thus described my invention, I claim as'ne'w and desire to secure by Letters Patent:

l. In a motor, the combination 'with a casing, of an oscillating piston in said casing, a .valve for controlling the flow of operative fluid to said piston, a lever for operating said valve, a shifter connected to said piston, cam lugs on said -shifter adapted to engage said-cam lugs on said lever to `hold said lever stationaryduring a portion of a revolution of 'saidr piston, 'and means on said shifter for engaging said lever, to operate the saine.

2'. In a motor, the combination With a cas ing, of an oscillating piston in said easing, a valve for controlling the flow of operative iiuid to said casing, a lever for operating said valve, a shifter connected to said piston, means on said shifter for engaging said lever, to hold said lever stationary during a portion of a' revolution of said piston, a member slidingly supported on said shifter and adapted. to engage said lever, and a spring connected to said shifter and said member, adaptedto aecumulatc`a potential force to operate said member.

3. In a motor, the combination with a casing, of an oscillating. piston in said casing,

a valve for controlling the fiovv of fluid to' said casing, 'a level'` for operating said valve,

a shifter connected'to said piston, means on said shifter adapted to hol said lever stationaryduring a. portion of a revolution of said piston, a, receptacle. connected to said shifter, having openings in the heads thereof, a spring contained in said receptacle, a

cam lugs on said lever,A

member slidingl connected to said shifter, lugs on said member adapted to pass through said openings and engage said spring, and means on said memberv for engaging said lever. l 4. In a motor, the combination with a casing, 'of anoscillating piston in said casing, a valve for controlling the flow of fluid to said easing, alever for operating-said valve, a shifter conneetedto said piston, means for holding said lever stationary during` a portion of a revolution of said piston, a receptacle connected to said shifter and havin slotted heads thereon, a spring cont-aine in said receptacle, a'member slidingly en gaging said shifter, lugs on said member adapted to pass -through said slots in said end thereof, and cam lugs on said member ladapted -to engage said lever.

- 5. I n a motor, the combination With a casing, of an oscillating piston in said casing, a valve for controlling the supply of motive Huid to said casing, a lever for operating said valve, cam lugs on said lever, a shifter connected to said piston, cani lugs on said shifter 'adapted to alternately engage said cam lugs on said lever, tohold said lever stationary during portions of a revolution of said piston, a member inovably secured to said shifter and adapted to remain stationary during a portion of a revolution of said shifter, and a spring for bringing said meniber backinto its original position relative i to said shifter. 6. In a motor, the combination With a easing, of an oscillating piston in said casing, a partition in said casing, a valve casing connected to said partition and having openings communicating with each side of said piston, a supply pipe connected to said valve casing, an exhaust pipe connected to said valve casing, a valve adapted to connect either side of said supply pipe or said exhaust pipe, a lever for operating said valve, cam lugs on said lever, a shifter connected to said piston, cani lugs on said, shifter adapted to alternately engage said lcam .lugson said lever, to hold said lev'er stationary during a 'portion of a revolution of said piston, a member movably connected with said shifter, cam lugs on said member engaging said lever, and a spring on said shifter adapted to yieldlngly hold said member against said lever at the ends of the rotation of said' piston.

In testimony whereof I 'have signed my name to this specification in the presence of two subscribing Witnesses.

ARCHIBALD KEYS 1 i.

Witnesses: l,

'Josemi Kiinso,l JAMES M. ANDERSON.

artition with either said. 

